Toothbrush



FIG. 1 is a perspective view as seen from the top, front and side of a toothbrush, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side view thereof, the opposite side being a mirror image of that shown;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an end view thereof; and,

FIG. 6 is an opposite end view thereof. 

The ornamental design for a toothbrush, as shown and described. 